Annex Creek
Annex Creek is an other dam located in City and Borough of Juneau, Alaska, built in 1968. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Annex Creek
The primary purpose of Annex Creek is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Alaska Electric Light And Power Company (private). It impounds the Annex Creek, Taku Inlet.
The dam stands 20 feet tall and stretches 115 feet across, creates a reservoir covering 264 acres, has a maximum storage capacity of 23,400 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1968, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/21/2022.
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Location
| State | Alaska |
| County | City and Borough of Juneau |
| Nearest City | None |
| River/Stream | Annex Creek, Taku Inlet |
| Coordinates | 58.32693, -134.12498 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 115 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 23,400 acre-ft |
| Max Storage | 23,400 acre-ft |
| Normal Storage | 23,400 acre-ft |
| Surface Area | 264 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 458 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Alaska Electric Light and Power Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/21/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AK00004 |
| Federal ID | AK00004 |
| More Info | State Dam Safety Program |